ArcMap creates a constant grid and tessellates it into a new grid

1、 According to the vector A Create a value of 14 Constant grid data . The specific operation is shown in the figure . There are several points to pay attention to , The constant value in the tool parameter is set to the required 14, The output pixel size remains the same as DEM The pixel size is the same  , Output range setting and vector A Same layer . Use to create a constant grid （Create Constant Raster） Tools , The parameters are shown in the figure ：

 2、 Now for the create constant grid tool , What matters is its environment settings , It mainly deals with the parameter settings under the two factors of processing range and grid analysis , The details are as follows: ：

3、 Click OK , You can get a vector A The value of the range is 14 Constant grid for B. 

4、 Now comes the last step , Set grid B With primordial DEM The data is processed by mosaic to the new grid , The setting of parameters is very important when inlaying into a new grid . Use tessellation to new grid （Mosaic to new raster） Tools , The specific parameters are as follows ：

Be careful ： （1） Constant grid B It should be listed in the original data DEM upper .（2） according to DEM Data selection pixel type .（3） Because constant grids B Replace the original value of DEM Value ,B Be on top . Therefore, the mosaic operator chooses FIRST.